class_docstr: SnapshotController inherits from BaseController and manages business logic related to snapshots
  
  Attributes
  ----------
  code : datmo.core.controller.code.code.CodeController
  file_collection : datmo.core.controller.file.file_collection.FileCollectionController
  environment : datmo.core.controller.environment.environment.EnvironmentController
  
  Methods
  -------
  create(dictionary)
      Create a snapshot within the project
  checkout(id)
      Checkout to a specific snapshot within the project
  list(visible=None, sort_key=None, sort_order=None)
      List all snapshots present within the project based on given filters
  delete(id)
      Delete the snapshot specified from the project
code: def __init__(self):
      super(SnapshotController, self).__init__()
      self.code_controller = CodeController()
      self.file_collection_controller = FileCollectionController()
      self.environment_controller = EnvironmentController()
      if not self.is_initialized:
          raise ProjectNotInitialized(
              __("error", "controller.snapshot.__init__")
          )
  
imports: import os
  from datmo.core.controller.base import BaseController
  from datmo.core.controller.code.code import CodeController
  from datmo.core.controller.file.file_collection import FileCollectionController
  from datmo.core.controller.environment.environment import EnvironmentController
  from datmo.core.entity.snapshot import Snapshot
  from datmo.core.util.i18n import get
  from datmo.core.util.validation import validate
  from datmo.core.util.json_store import JSONStore
  from datmo.core.util.exceptions import FileIOError, RequiredArgumentMissing, ProjectNotInitialized, EntityNotFound, TaskNotComplete, DoesNotExist, UnstagedChanges
label_desc: Use image node_id 1 to create a new SnapshotController object from inherited base classes: BaseController with example: obj = SnapshotController()